Really, business backups over USB??
"Data backups, file transfers, video production, audio editing and other common, everyday tasks are consuming increasing amounts of time as organizations increasingly create, edit and back up additional gigabytes if not terabytes of information. Its no longer unusual for my consulting office to have to back up several terabytes of data a day for a client."
This is true, but not over USB.
Backups are taken over eSATA, iSCSI, SCSI, or LAN connections to storage systems such as DAS, NAS, SAN, LTO.
The size of data you're talking about would be stored and backed-up from a server device with DAS (direct attached storage) or Tier 1 storage devices (quality SANs) - and not from a client laptop. Any business operating in the fashion you suggest is IMHO "doing it wrong".
Thunderbolt will not penetrate the general server market.
